Water treatment equipment and control method thereof

Abstract

The invention provides water treatment equipment. The water treatment equipment comprises a normal-temperature water tank, a heat preservation water tank, a switching valve, a reversing valve and a controller, a first water outlet pipeline is arranged between the water outlet of the normal-temperature water tank and the water inlet of the reversing valve; a second water outlet pipeline is communicated between the water outlet of the heat preservation water tank and the first water outlet pipeline; a first water outlet of the reversing valve is communicated with a water inlet of the switching valve, and a second water outlet of the reversing valve is used for supplying water to the outside; a first water outlet of the switching valve is communicated with a water inlet of the normal-temperature water tank, and a second water outlet of the switching valve is communicated with a water inlet of the heat preservation water tank; the controller is used for determining water output of the water supply tank according to the target water outlet temperature, the first water temperature and the second water temperature, controlling the reversing valve to be communicated with the switching valve and controlling the switching valve to be communicated with the backflow water tank in the normal-temperature water tank and the heat preservation water tank. Wherein the first water temperature is the water temperature of the normal-temperature water tank, and the second water temperature is the water temperature of the heat preservation water tank. The water treatment equipment provided by the embodiment of the invention can improve the water outlet efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water treatment equipment, in particular to a water treatment equipment and a control method thereof. BACKGROUND

[0002] When the water treatment equipment such as a drinking water device or a water purifier is started, there is usually residual pipeline water in part of the pipeline from the last use, and this part of the pipeline residual water will affect the final outlet water temperature, resulting in the inability to guarantee the consistency of the water temperature in the overall water discharge process. Therefore, when starting the water treatment equipment, the pipeline residual water needs to be treated.

[0003] In the related art, the pipeline residual water is treated by adding a circulating pipeline, and the pipeline residual water or the pipeline residual water mixed with purified water is circulated to a target temperature in the circulating pipeline, and then the outlet water is controlled. However, this method needs to wait for the temperature of the pipeline residual water to be adjusted to the target temperature before the outlet water is discharged, which takes a long time and affects the outlet water efficiency. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the related art. To this end, the present application provides a water treatment equipment which can improve the consistency of the water temperature in the outlet water process while improving the outlet water efficiency.

[0005] The water treatment equipment according to the first aspect of the present application comprises a normal temperature water tank, a heat preservation water tank, a switching valve, a reversing valve and a controller. A first outlet water pipeline is arranged between the outlet of the normal temperature water tank and the water inlet of the reversing valve, and a second outlet water pipeline is arranged between the outlet of the heat preservation water tank and the first outlet water pipeline. The first outlet of the reversing valve is communicated with the water inlet of the switching valve, and the second outlet of the reversing valve is used for supplying water to the outside. The first outlet of the switching valve is communicated with the water inlet of the normal temperature water tank, and the second outlet of the switching valve is communicated with the water inlet of the heat preservation water tank. The controller is used for determining the water supply water tank outlet water from the normal temperature water tank and the heat preservation water tank according to the target outlet water temperature, the first water temperature and the second water temperature in response to the trigger signal prompting the outlet water, and controlling the reversing valve and the switching valve to be conductive, and controlling the switching valve and the backflow water tank in the normal temperature water tank and the heat preservation water tank to be conductive; wherein the first water temperature is the water temperature of the normal temperature water tank, and the second water temperature is the water temperature of the heat preservation water tank.

[0006] The application provides a water treatment device, which can quickly return the residual water in the pipeline to the water tank and then discharge the water, reduces the influence of the temperature of the residual water in the pipeline on the temperature of the water discharged from the reversing valve, improves the consistency of the water temperature during the water discharge process, and improves the water discharge efficiency without circulating the residual water in the pipeline to a target temperature before discharging the water.

[0007] According to an embodiment of the application, the controller is further configured to: When the water supply tank is the normal-temperature water tank, the heat-preservation water tank is used as the return water tank; and when the water supply tank is the heat-preservation water tank, the normal-temperature water tank is used as the return water tank.

[0008] According to an embodiment of the application, the controller is further configured to: Calculate the temperature difference between the residual water temperature of the residual water in the pipeline of the water treatment device and the first water temperature and the second water temperature; When the temperature difference between the residual water temperature and the first water temperature is greater than the temperature difference between the residual water temperature and the second water temperature, the heat-preservation water tank is used as the return water tank; When the temperature difference between the residual water temperature and the first water temperature is less than or equal to the temperature difference between the residual water temperature and the second water temperature, the normal-temperature water tank is used as the return water tank.

[0009] According to an embodiment of the application, the controller is further configured to: Calculate the temperature difference between the target water discharge temperature and the water temperature in the water supply tank; When the temperature difference between the target water discharge temperature and the water temperature in the water supply tank is less than a preset value, the water supply tank is used as the return water tank; otherwise, a non-water supply tank is used as the return water tank.

[0010] According to an embodiment of the application, the controller is further configured to: Compare the sizes of the target water discharge temperature, the residual water temperature and the water temperature of the water supply tank; When the target water discharge temperature is greater than the residual water temperature, and the residual water temperature is greater than the water temperature of the water supply tank, the water supply tank is used as the return water tank; otherwise, a non-water supply tank is used as the return water tank.

[0011] According to an embodiment of the application, the controller is further configured to: Receive a return end signal, and control the switching valve to be connected to the water supply tank when the return water tank and the water supply tank are not the same tank; The return end signal is used to indicate that the pipeline residual water has completed the return.

[0012] According to an embodiment of the application, the controller is further configured to: After receiving the backflow end signal, the switching valve and the water supply tank are controlled to be connected.

[0013] According to one embodiment of the present application, further comprising at least one instant heating element; The instant heating element is arranged upstream of the water inlet of the reversing valve and downstream of the intersection of the first water outlet pipeline and the second water outlet pipeline. The controller is further configured to adjust the heating power of the instant heating element according to the target water outlet temperature and at least one of the first water temperature or the second water temperature.

[0014] The control method of the water treatment device according to the second aspect of the present application is applied to any of the above-mentioned embodiments of the water treatment device, and comprises: In response to a trigger signal prompting water outlet, determining the water supply tank to supply water according to the target water outlet temperature, the first water temperature and the second water temperature, and controlling the reversing valve and the switching valve to be connected, and controlling the switching valve and the backflow tank in the normal temperature water tank and the heat preservation water tank to be connected; The first water temperature is the water temperature of the normal temperature water tank, and the second water temperature is the water temperature of the heat preservation water tank.

[0015] The control device of the water treatment device according to the third aspect of the present application is applied to any of the above-mentioned embodiments of the water treatment device, and comprises: The control module is configured to determine the water supply tank to supply water according to the target water outlet temperature, the first water temperature and the second water temperature in response to a trigger signal prompting water outlet, and control the reversing valve and the switching valve to be connected, and control the switching valve and the backflow tank in the normal temperature water tank and the heat preservation water tank to be connected. The first water temperature is the water temperature of the normal temperature water tank, and the second water temperature is the water temperature of the heat preservation water tank.

[0016] The electronic device according to the fourth aspect of the present application comprises a processor and a memory storing a computer program, and the processor executes the computer program to realize the control method of the water treatment device according to any of the above-mentioned embodiments.

[0017] The computer readable storage medium according to the fifth aspect of the present application has a computer program stored thereon, and the computer program is executed by a processor to realize the control method of the water treatment device according to any of the above-mentioned embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0019] Figure 1 The first structural schematic diagram of the water treatment equipment provided by the embodiments of the present application is shown in FIG. 1. Figure 2 The second structural schematic diagram of the water treatment equipment provided by the embodiments of the present application is shown in FIG. 2. Figure 3 The flowchart of the control method of the water treatment equipment provided by the embodiments of the present application is shown in FIG. 3. Figure 4 The structural schematic diagram of the control device of the water treatment equipment provided by the embodiments of the present application is shown in FIG. 4. Figure 5 The structural schematic diagram of the electronic device provided by the embodiments of the present application is shown in FIG. 5. Some of the drawing reference numbers in the specific embodiments are as follows: 10-constant-temperature water tank; 20-heat-preservation water tank; 30-switching valve; 40-reversing valve; 50-first water outlet pipeline; 60-second water outlet pipeline; 70-immediate heating element; 101-first pump body; 102-second pump body; 103-temperature sensor; 104-liquid level detector; 105-one-way valve. Specific embodiments

[0020] In order to make the purpose, technical solutions and advantages of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0021] The following will introduce and illustrate the water treatment equipment and its control method provided by the embodiments of the present application through several specific embodiments.

[0022] When the water treatment equipment such as a water dispenser or a water purifier is started, there is usually some pipeline residual water left in the pipeline from the last use, and this part of the pipeline residual water will affect the final water temperature. Since the amount of water to be received cannot be predicted, it is also difficult to balance the overall water temperature by adjusting the temperature of the subsequent water, resulting in the inability to guarantee the consistency of the water temperature during the overall water discharge process. Therefore, when starting the water treatment equipment, the pipeline residual water needs to be treated.

[0023] To avoid wasting water resources, related technologies treat residual water in pipelines by adding a circulation system. The residual water, or a mixture of residual water and purified water, is circulated in the circulation system until it reaches the target temperature, and then the water output is controlled. However, if the temperature of the residual water in the pipeline differs significantly from the target temperature, this method requires a long waiting time, affecting water output efficiency.

[0024] Therefore, in one embodiment, a water treatment device is provided, which may specifically be a water purifier or a water dispenser. Figure 1 As shown, the water treatment equipment provided in this embodiment includes: a normal temperature water tank 10, an insulated water tank 20, a switching valve 30, a reversing valve 40, and a controller (not shown); a first outlet pipe 50 is provided between the outlet of the normal temperature water tank 10 and the inlet of the reversing valve 40, and a second outlet pipe 60 is connected between the outlet of the insulated water tank 20 and the first outlet pipe 50; the first outlet of the reversing valve 40 is connected to the inlet of the switching valve 30, and the second outlet of the reversing valve 40 is used to supply water to the outside; the first outlet of the switching valve 30 is connected to the inlet of the normal temperature water tank 10. The inlet of water tank 10 is connected, and the second outlet of switching valve 30 is connected to the inlet of insulated water tank 20. The controller is used to respond to the trigger signal indicating water output, determine the water supply tank output from the ambient temperature water tank 10 and the insulated water tank 20 according to the target water output temperature, the first water temperature and the second water temperature, and control the reversing valve 40 to conduct with the switching valve 30, and control the switching valve 30 to conduct with the return water tank in the ambient temperature water tank 10 and the insulated water tank 20. The first water temperature is the water temperature of the ambient temperature water tank 10, and the second water temperature is the water temperature of the insulated water tank 20.

[0025] In some embodiments, the ambient temperature water tank 10 is used to store ambient temperature water, that is, water that is close to room temperature. The insulated water tank 20 is used to store hot water at a certain temperature. The insulated temperature of the insulated water tank 20 can be set according to actual conditions, such as any value in the range of 45℃-100℃, to store hot water at the corresponding temperature, such as 45℃, 50℃, 55℃, 60℃, 65℃, 70℃, 75℃, 80℃, 85℃, 90℃, or 95℃.

[0026] Temperature sensors 103 can be installed in both the ambient temperature water tank 10 and the insulated water tank 20 to detect the water temperature. Additionally, level detectors 104, such as level probes, can be installed in both the ambient temperature water tank 10 and the insulated water tank 20 to detect the water level and replenish the tank when the water level is detected to be below a preset level.

[0027] The ambient temperature water tank 10 may also be equipped with a sterilization component, such as a UV sterilization component, to disinfect and sterilize the water in the ambient temperature water tank 10.

[0028] The reversing valve 40 and the switching valve 30 can be three-way valves, such as electromagnetic three-way valves. The outlet of the normal-temperature water tank 10 is connected to the inlet of the reversing valve 40 via a first outlet pipeline 50, and the first outlet pipeline 50 is provided with a first pump body 101, which can be a water pump, such as a gear pump or an impeller pump, for conveying the normal-temperature water in the normal-temperature water tank 10. The outlet of the heat-preservation water tank 20 is connected to the first outlet pipeline 50 via a second outlet pipeline 60, and the second outlet pipeline 60 is provided with a second pump body 102, which can be a hot water pump, such as a centrifugal hot water pump, an impeller pump or a volumetric hot water pump, for conveying the hot water in the heat-preservation water tank 20. The first outlet pipeline 50 and the second outlet pipeline 60 can be respectively provided with a one-way valve 105 to prevent backflow. The inlet of the switching valve 30 is connected to the first outlet of the reversing valve 40, the first outlet of the switching valve 30 is connected to the inlet of the normal-temperature water tank 10, and the second outlet is connected to the inlet of the heat-preservation water tank 20.

[0029] The first outlet pipeline 50 and the second outlet pipeline 60 can be respectively provided with at least one temperature sensor to detect the temperature of the water flowing through the first outlet pipeline 50 and the second outlet pipeline 60. In addition, the first outlet pipeline 50 and the second outlet pipeline 60 can be provided with heating components to heat the water flowing through the first outlet pipeline 50 and the second outlet pipeline 60 as needed. The first outlet pipeline 50 and the second outlet pipeline 60 can be respectively provided with at least one sterilization component, such as a UV sterilization component, to sterilize and disinfect the water flowing through the first outlet pipeline 50 and the second outlet pipeline 60.

[0030] In some embodiments, the controller can be electrically connected to the first pump body 101, the second pump body 102, the reversing valve 40 and the switching valve 30 to control the water supply of the normal-temperature water tank 10, the water supply of the heat-preservation water tank 20, the water flow backflow and the water outlet, etc. For example, the controller can control the second pump body 102 to be turned on, the first outlet of the reversing valve 40 to be turned on, the second outlet to be turned off, and the second outlet of the switching valve 30 to be turned on, so that the water in the heat-preservation water tank 20 can flow through the reversing valve 40 and the switching valve 30 via the second outlet pipeline 60 and then backflow to the heat-preservation water tank 20. Alternatively, the controller can control the first pump body 101 to be turned on, the first outlet of the reversing valve 40 to be turned on, the second outlet to be turned off, and the second outlet of the switching valve 30 to be turned on, so that the water in the normal-temperature water tank 10 can flow through the reversing valve 40 and the switching valve 30 via the first outlet pipeline 50 and then backflow to the heat-preservation water tank 20 to supplement the water in the heat-preservation water tank 20, etc.

[0031] In some embodiments, the controller is configured to, when receiving a trigger signal prompting water to be dispensed, in response to the trigger signal, acquire a target water temperature, a first water temperature and a second water temperature, and compare the target water temperature with the first water temperature and the second water temperature, i.e. the water temperature of the normal-temperature water tank 10 and the heat-preservation water tank 20. The water temperature of the normal-temperature water tank 10 and the heat-preservation water tank 20 can be determined by the temperature sensor 103 arranged in the normal-temperature water tank 10 and the heat-preservation water tank 20. If the target water temperature is closer to the water temperature of the normal-temperature water tank 10, the normal-temperature water tank 10 is determined as the water supply tank, and if the target water temperature is closer to the water temperature of the heat-preservation water tank 20, the normal-temperature water tank 10 is determined as the water supply tank. If the target water temperature is normal temperature, the normal-temperature water tank 10 is determined as the water supply tank.

[0032] For example, if the water supply tank is the normal-temperature water tank 10, the first pump body 101 can be controlled to control the normal-temperature water tank 10 to dispense water, the first water outlet of the reversing valve 40 is turned on, the second water outlet of the reversing valve 40 is turned off, the first water outlet of the switching valve 30 is turned on, and the second water outlet of the switching valve 30 is turned off. At this time, the water flow of the normal-temperature water tank 10 flows through the reversing valve 40, and the residual water in the reversing valve 40 is taken away and flows back to the normal-temperature water tank 10. Alternatively, if the water supply tank is the normal-temperature water tank 10, the first pump body 101 can be controlled to control the normal-temperature water tank 10 to dispense water, the first water outlet of the reversing valve 40 is turned on, the second water outlet of the reversing valve 40 is turned off, the second water outlet of the switching valve 30 is turned on, and the first water outlet of the switching valve 30 is turned off. At this time, the water flow of the normal-temperature water tank 10 flows through the reversing valve 40, and the residual water in the reversing valve 40 is taken away and flows back to the heat-preservation water tank 20. The same applies to the heat-preservation water tank 20. Thus, the influence of the temperature of the residual water on the water temperature of the reversing valve 40 can be reduced, the consistency of the water temperature during water dispensing can be improved, and the water dispensing efficiency can be improved without the need to circulate the residual water to the target temperature before dispensing water.

[0033] In some embodiments, the backflow tank can be determined according to at least one of the target water temperature, the water supply tank and the residual water temperature.

[0034] As a possible implementation, if the target water temperature is greater than a preset temperature, the water supply tank is the heat-preservation water tank 20, and the normal-temperature water tank 10 can be determined as the backflow tank to reduce the influence of the water temperature of the residual water on the water temperature of the heat-preservation water tank 20.

[0035] As another possible implementation, if the water supply tank is the heat-preservation water tank 20, the heat-preservation water tank 20 can be selected as the backflow tank, and if the water supply tank is the normal-temperature water tank 10, the normal-temperature water tank 10 can be selected as the backflow tank.

[0036] As a further possible implementation, if the residual water temperature is greater than a set temperature, the heat-preservation water tank 20 is selected as the backflow tank, otherwise, the normal-temperature water tank 10 is selected as the backflow tank.

[0037] When the pipeline residual water is completed backflow, the first water outlet of the reversing valve 40 is closed, and the second water outlet is conducted to perform normal water supply. The determination of whether the pipeline residual water is completed backflow can be determined by timing. For example, the time length of the water backflow from the normal temperature water tank 10 to the normal temperature water tank 10, the water backflow from the normal temperature water tank 10 to the heat preservation water tank 20, the water backflow from the heat preservation water tank 20 to the normal temperature water tank 10, and the water backflow from the heat preservation water tank 20 to the heat preservation water tank 20 can be determined by experiments, and the maximum time length is used as the timing time length. When the time length of the water supply tank water outlet reaches the timing time length, it is determined that the pipeline residual water is completed backflow. Alternatively, the controller can be electrically connected with the liquid level detector 104 arranged in the normal temperature water tank 10 and the heat preservation water tank 20, and the liquid level detector 104 arranged in the normal temperature water tank 10 and the heat preservation water tank 20 is used to determine whether the pipeline residual water is completed backflow. Since whether the normal temperature water tank 10 is a water supply tank, when the pipeline residual water backflows to the normal temperature water tank 10, the water level of the normal temperature water tank 10 will change, so when the pipeline residual water backflows to the normal temperature water tank 10, the liquid level detector 104 of the normal temperature water tank 10 can be used to determine whether the water backflows to the normal temperature water tank 10. If it is detected that the water backflows to the normal temperature water tank 10, it is determined that the pipeline residual water is completed backflow. The heat preservation water tank 20 is the same.

[0038] By providing a water treatment device, when starting the water treatment device to supply water, the pipeline residual water can be quickly backflowed to the water tank before water is supplied, reducing the influence of the temperature of the pipeline residual water on the water temperature of the reversing valve, improving the consistency of the water temperature during water supply, and without the need to circulate the pipeline residual water to the target temperature before water is supplied, improving the water supply efficiency.

[0039] In order to further reduce the influence of the pipeline residual water on the water temperature, in some embodiments, the controller is further used for: When the water supply tank is the normal temperature water tank 10, the heat preservation water tank 20 is used as the backflow tank; when the water supply tank is the heat preservation water tank 20, the normal temperature water tank 10 is used as the backflow tank.

[0040] For example, if the water supply tank is the normal temperature water tank 10, the controller can open the first pump body 101 to control the normal temperature water tank 10 to supply water in response to the trigger signal prompting water supply, control the first water outlet of the reversing valve 40 to be open and the second water outlet to be closed, and control the first water outlet of the switching valve 30 to be closed and the second water outlet to be open. At this time, the water in the normal temperature water tank 10 flows through the first water outlet pipe 50, the reversing valve 40, and the second water outlet of the switching valve 30 to return to the heat preservation water tank 20. Similarly, if the water supply tank is the heat preservation water tank 20, the controller can open the second pump body 102 to control the heat preservation water tank 20 to supply water in response to the trigger signal prompting water supply, control the first water outlet of the reversing valve 40 to be open and the second water outlet to be closed, and control the first water outlet of the switching valve 30 to be open and the second water outlet to be closed. At this time, the water in the heat preservation water tank 20 flows through the second water outlet pipe 60, the reversing valve 40, and the first water outlet of the switching valve 30 to return to the normal temperature water tank 10. In this way, the possibility that the pipe residual water interferes with the water temperature of the water supply tank can be reduced, so that the water inlet temperature of the reversing valve 40 is more stable, the consistency of the water outlet temperature is improved, and the influence of the pipe residual water on the water outlet temperature is further reduced.

[0041] In some embodiments, the controller is specifically configured to: determine that the water level of the normal temperature water tank 10 or the heat preservation water tank 20 is lower than a preset water level, and when the water supply tank is the normal temperature water tank 10, use the heat preservation water tank 20 as the return tank, and when the water supply tank is the heat preservation water tank 20, use the normal temperature water tank 10 as the return tank.

[0042] For example, the controller can first acquire the current water levels of the normal temperature water tank 10 and the heat preservation water tank 20 in response to the trigger signal prompting water supply, such as acquiring the current water levels of the normal temperature water tank 10 and the heat preservation water tank 20 through the water level detectors in the normal temperature water tank 10 and the heat preservation water tank 20. If the current water level of the normal temperature water tank 10 or the heat preservation water tank 20 is less than the preset water level, a small amount of water inlet of the normal temperature water tank 10 or the heat preservation water tank 20 will affect the water temperature of the normal temperature water tank 10 or the heat preservation water tank 20. At this time, after determining the water supply tank of the normal temperature water tank 10 and the heat preservation water tank 20 according to the target water outlet temperature, the controller controls the water supply tank to supply water, controls the first water outlet of the reversing valve 40 to be open and the second water outlet to be closed, and controls the water outlet not connected with the water supply tank among the first water outlet and the second water outlet of the switching valve 30 to be open, so that the pipe residual water in the reversing valve 40 returns to the other tank, thereby reducing the possibility that the pipe residual water interferes with the water temperature of the water supply tank.

[0043] In some embodiments, the controller is further configured to: The temperature difference between the residual water temperature and the first water temperature and the second water temperature of the residual water in the pipeline of the water treatment device is calculated; when the temperature difference between the residual water temperature and the first water temperature is greater than the temperature difference between the residual water temperature and the second water temperature, the heat preservation water tank 20 is used as the backflow water tank; when the temperature difference between the residual water temperature and the first water temperature is less than or equal to the temperature difference between the residual water temperature and the second water temperature, the normal temperature water tank 10 is used as the backflow water tank.

[0044] In some embodiments, a temperature sensor 103 can be arranged at the water inlet of the reversing valve 40, and when the water treatment device is not started to supply water, the temperature detected by the temperature sensor 103 is the temperature of the pipeline residual water, i.e., the residual water temperature.

[0045] After receiving the trigger signal prompting water output, the controller can first respond to the trigger signal to obtain the current water level of the normal temperature water tank 10 and the heat preservation water tank 20. If the current water level of the normal temperature water tank 10 or the heat preservation water tank 20 is less than the preset water level, the residual water temperature of the pipeline residual water and the first water temperature and the second water temperature, i.e., the water temperature of the normal temperature water tank 10 and the heat preservation water tank 20, are obtained. The residual water temperature is compared with the water temperature of the normal temperature water tank 10 and the heat preservation water tank 20. If the temperature difference between the residual water temperature and the water temperature of the normal temperature water tank 10 is greater than the temperature difference between the residual water temperature and the water temperature of the heat preservation water tank 20, the heat preservation water tank 20 is used as the backflow water tank, the first water outlet of the reversing valve 40 is controlled to be conductive and the second water outlet is controlled to be closed, and the first water outlet of the switching valve 30 is controlled to be closed and the second water outlet is controlled to be conductive, so that the pipeline residual water in the reversing valve 40 is backflowed to the heat preservation water tank 20.

[0046] If the temperature difference between the residual water temperature and the water temperature of the normal temperature water tank 10 is less than or equal to the temperature difference between the residual water temperature and the water temperature of the heat preservation water tank 20, the normal temperature water tank 10 is used as the backflow water tank, the first water outlet of the reversing valve 40 is controlled to be conductive and the second water outlet is controlled to be closed, and the first water outlet of the switching valve 30 is controlled to be conductive and the second water outlet is controlled to be closed, so that the pipeline residual water in the reversing valve 40 is backflowed to the heat preservation water tank 20. Thus, if the residual water temperature of the pipeline residual water is close to the water temperature of the normal temperature water tank 10, the pipeline residual water is controlled to be backflowed to the normal temperature water tank 10, and if the residual water temperature of the pipeline residual water is close to the water temperature of the heat preservation water tank 20, the pipeline residual water is controlled to be backflowed to the heat preservation water tank 20, thereby reducing the influence of the pipeline residual water on the water temperature of the water tank at low water level.

[0047] In some embodiments, the controller is further configured to: calculate the temperature difference between the target water output temperature and the water temperature in the water supply tank; when the temperature difference between the target water output temperature and the water temperature in the water supply tank is less than a preset value, the water supply tank is used as the backflow water tank; otherwise, a non-water supply tank is used as the backflow water tank.

[0048] In some embodiments, after determining the water supply tank, the temperature difference between the target outlet water temperature and the water temperature in the water supply tank can be detected. If the temperature difference between the target outlet water temperature and the water temperature in the water supply tank is less than a preset value, the water in the water supply tank can be controlled to flow out, the first outlet of the faucet valve 40 is turned on, the second outlet is closed, and the outlet in the first outlet and the second outlet of the switching valve 30 that communicates with the water supply tank is turned on, so that the residual water in the pipeline in the faucet valve 40 flows back to the water supply tank; if the temperature difference between the target outlet water temperature and the water temperature in the water supply tank is greater than or equal to the preset value, the water in the water supply tank can be controlled to flow out, the first outlet of the faucet valve 40 is turned on, the second outlet is closed, and the outlet in the first outlet and the second outlet of the switching valve 30 that does not communicate with the water supply tank is turned on, so that the residual water in the pipeline in the faucet valve 40 flows back to another tank.

[0049] For example, assuming that the water supply tank is the normal temperature tank 10, if the temperature difference between the target outlet water temperature and the water temperature in the normal temperature tank 10 is less than a preset value, the water in the normal temperature tank 10 can be controlled to flow out, the first outlet of the faucet valve 40 is turned on, the second outlet is closed, and the first outlet of the switching valve 30 is turned on, the second outlet is closed, so that the residual water in the pipeline in the faucet valve 40 flows back to the normal temperature tank 10; if the temperature difference between the target outlet water temperature and the water temperature in the normal temperature tank 10 is greater than or equal to the preset value, the water in the normal temperature tank 10 can be controlled to flow out, the first outlet of the faucet valve 40 is turned on, the second outlet is closed, and the first outlet of the switching valve 30 is closed, the second outlet is turned on, so that the residual water in the pipeline in the faucet valve 40 flows back to the heat preservation tank 20. The heat preservation tank 20 is the same.

[0050] In some embodiments, the controller is further configured to compare the target outlet water temperature, the residual water temperature, and the water temperature of the water supply tank; when the target outlet water temperature is greater than the residual water temperature, and the residual water temperature is greater than the water temperature of the water supply tank, the water supply tank is used as the backflow tank; otherwise, a non-water supply tank is used as the backflow tank.

[0051] In some embodiments, after determining the water supply tank, the target outlet water temperature, the residual water temperature, and the water temperature of the water supply tank can be compared first. If the target outlet water temperature is greater than the residual water temperature, and the residual water temperature is greater than the water temperature of the water supply tank, the water in the water supply tank can be controlled to flow out, the first outlet of the faucet valve 40 is turned on, the second outlet is closed, and the outlet in the first outlet and the second outlet of the switching valve 30 that communicates with the water supply tank is turned on, so that the residual water in the pipeline in the faucet valve 40 flows back to the water supply tank; otherwise, the water in the water supply tank can be controlled to flow out, the first outlet of the faucet valve 40 is turned on, the second outlet is closed, and the outlet in the first outlet and the second outlet of the switching valve 30 that does not communicate with the water supply tank is turned on, so that the residual water in the pipeline in the faucet valve 40 flows back to another tank.

[0052] For example, assuming that the water supply tank is the normal temperature water tank 10, if the target water outlet temperature is greater than the residual water temperature which is greater than the water temperature of the water supply tank, the normal temperature water tank 10 can be controlled to outlet water, the first water outlet of the faucet valve 40 is turned on, the second water outlet is turned off, and the first water outlet of the switching valve 30 is turned on and the second water outlet is turned off, so that the residual water in the pipeline of the faucet valve 40 is returned to the normal temperature water tank 10; otherwise, the normal temperature water tank 10 can be controlled to outlet water, the first water outlet of the faucet valve 40 is turned on, the second water outlet is turned off, and the first water outlet of the switching valve 30 is turned off and the second water outlet is turned on, so that the residual water in the pipeline of the faucet valve 40 is returned to the heat preservation water tank 20. The heat preservation water tank 20 is the same.

[0053] When the target water outlet temperature is greater than the residual water temperature and the residual water temperature is greater than the water temperature of the water supply tank, the water in the water supply tank needs to be circularly heated to the target water outlet temperature before outlet, and at this time, the water supply tank is used as the return tank, which can accelerate the speed of the water temperature of the water supply tank reaching the target water outlet temperature, and the switching time of the switching valve is saved to directly circularly heat, thereby improving the outlet speed of the water tank.

[0054] Considering that the water flow may need to be circularly heated when water is supplied, in some embodiments, the controller is further configured to: receive a return end signal, and control the switching valve 30 to be connected with the water supply tank when the return tank is not the same as the water supply tank; wherein the return end signal is used to indicate that the residual water in the pipeline has completed return.

[0055] For example, if the water supply tank is the heat preservation water tank 20 and the return tank is the normal temperature water tank 10, the controller can control the first water outlet of the switching valve 30 to be turned off and the second water outlet to be turned on when it is detected that the residual water in the pipeline has returned to the normal temperature water tank 10, so that the water flow in the heat preservation water tank 20 can circularly flow in the loop formed by the heat preservation water tank 20, the switching valve 30 and the faucet valve 40, and be circularly heated by the heating assembly in the loop to the target water outlet temperature before outlet, so as to ensure the normal circular heating. The water supply tank is the normal temperature water tank 10 and the return tank is the heat preservation water tank 20, and the same applies.

[0056] In order to ensure that the residual water in the pipeline has completed return, in some embodiments, the controller is further configured to: After receiving the return end signal, the switching valve 30 is controlled to be connected with the water supply tank after a time delay.

[0057] In some embodiments, when it is detected that the residual water in the pipeline has returned to the normal temperature water tank 10, that is, when the return end signal is received, the switching valve 30 is controlled to be connected with the water supply tank after a time delay, such as 0.5S, after receiving the return end signal, so as to ensure that the residual water in the pipeline has completed return.

[0058] To further improve the stability of the water temperature of the water treatment device, in some embodiments, as shown in Figure 2 the water treatment device further comprises at least one instant heating element 70; The instant heating element 70 is arranged upstream of the water inlet of the reversing valve 40 and downstream of the intersection of the first water outlet pipeline 50 and the second water outlet pipeline 60. The controller is further configured to adjust the heating power of the instant heating element 70 according to the target water outlet temperature and at least one of the first water temperature or the second water temperature.

[0059] Since the water temperature of the heat preservation water tank 20 can only be set to a heat preservation temperature, and when the user takes hot water, the set target water outlet temperature can be different from the heat preservation temperature set by the heat preservation water tank 20. For example, if the heat preservation water tank 20 is set to 45°C, and the target water outlet temperature is 60°C, the water temperatures of the heat preservation water tank 20 and the normal temperature water tank 10 cannot meet the demand of the target water outlet temperature. Therefore, at least one instant heating element 70, such as a PTC, can be arranged between the upstream of the water inlet of the reversing valve 40 and the downstream of the intersection of the first water outlet pipeline 50 and the second water outlet pipeline 60.

[0060] A temperature sensor 103 can be arranged between the instant heating element 70 and the water inlet of the reversing valve 40, close to the water inlet of the reversing valve 40, to detect the temperature of the water flow entering the reversing valve 40 and the temperature of the residual water in the pipeline. A temperature sensor 103 can also be arranged between the instant heating element 70 and the intersection, to detect the temperature of the water flow flowing into the instant heating element 70.

[0061] The controller obtains the target water outlet temperature and at least one of the first water temperature or the second water temperature in response to the trigger signal indicating that the water is to be dispensed. If the water supply tank is the normal temperature water tank 10, the first water temperature is obtained and used as the initial water flow temperature. If the water supply tank is the heat preservation water tank 20, the second water temperature is obtained and used as the initial water flow temperature. If both water tanks supply water, the first water temperature and the second water temperature are obtained simultaneously, and the mixed temperature of the first water temperature and the second water temperature is used as the initial water flow temperature. After the target water outlet temperature and the initial water flow temperature are determined, the heating power of the instant heating element 70 can be adjusted according to the target water outlet temperature and the initial water flow temperature. For example, the instant heating element 70 can be adjusted to work at a power that heats the initial water flow temperature of the water flow to the target water outlet temperature, so that the water flow after being heated by the instant heating element 70 reaches the target water outlet temperature.

[0062] Although the instant heating element 70 has poor heating effect on the water flowing out first from the water tank at the initial stage of heating, this part of water will flow back with the residual water in the pipeline, thereby reducing the temperature difference between the water outlet temperature and the target water outlet temperature and improving the stability of the water temperature of the water treatment device.

[0063] By setting at least one instant heating element 70 between the upstream of the water inlet of the reversing valve 40 and the downstream of the intersection point of the first water outlet pipeline 50 and the second water outlet pipeline 60, the heating power of the instant heating element 70 is adjusted according to the target water outlet temperature and at least one of the first water temperature or the second water temperature, so that the water outlet temperature of the water treatment equipment can reach the target water outlet temperature, precise temperature control is realized, and the stability of the water outlet temperature of the water treatment equipment is improved.

[0064] In addition, if the heating assembly is arranged in the first water outlet pipeline 50 and the second water outlet pipeline 60, the heating power of the heating assembly in the first water outlet pipeline 50 and the second water outlet pipeline 60 can be adjusted according to the target water outlet temperature and at least one of the first water temperature or the second water temperature, so as to further improve the stability of the water outlet temperature of the water treatment equipment. If the water tank for water supply is the normal temperature water tank 10, the heating power of the heating assembly in the first water outlet pipeline 50 can be adjusted according to the target water outlet temperature and the first water temperature; if the water tank for water supply is the heat preservation water tank 20, the heating power of the heating assembly in the second water outlet pipeline 60 can be adjusted according to the target water outlet temperature and the second water temperature; if the water tank for water supply is the normal temperature water tank 10 and the heat preservation water tank 20, the heating power of the heating assembly in the first water outlet pipeline 50 and the second water outlet pipeline 60 can be adjusted according to the target water outlet temperature, the first water temperature and the second water temperature.

[0065] Figure 3 A first flow chart of a control method of a water treatment equipment is shown. The control method of the water treatment equipment is applied to the water treatment equipment in any of the above embodiments, and specifically, can be applied to the controller in any of the above embodiments.

[0066] In some embodiments, the control method of the water treatment equipment includes: S101, in response to a trigger signal prompting water outlet, determining a water supply water tank from the normal temperature water tank and the heat preservation water tank according to the target water outlet temperature, the first water temperature and the second water temperature, and controlling the reversing valve and the switching valve to be conducted, and controlling the switching valve and the backflow water tank in the normal temperature water tank and the heat preservation water tank to be conducted; Wherein, the first water temperature is the water temperature of the normal temperature water tank, and the second water temperature is the water temperature of the heat preservation water tank.

[0067] By responding to the trigger signal prompting water outlet, determining the water supply water tank from the normal temperature water tank and the heat preservation water tank according to the target water outlet temperature, the first water temperature and the second water temperature, and controlling the reversing valve and the switching valve to be conducted, and controlling the switching valve and the backflow water tank in the normal temperature water tank and the heat preservation water tank to be conducted, when starting the water treatment equipment to outlet water, the pipeline residual water can be quickly backflowed to the water tank before outletting water, the influence of the temperature of the pipeline residual water on the water outlet temperature of the reversing valve is reduced, the consistency of the water temperature during the water outlet process is improved, and the water outlet efficiency is improved without circulating the pipeline residual water to the target temperature before outletting water.

[0068] In some embodiments, the control method further comprises: When the water supply tank is a normal temperature tank, using the heat preservation tank as the backflow tank; and when the water supply tank is a heat preservation tank, using the normal temperature tank as the backflow tank.

[0069] In some embodiments, the control method further comprises: calculating a temperature difference between the residual water temperature and the first water temperature, and a temperature difference between the residual water temperature and the second water temperature; When the temperature difference between the residual water temperature and the first water temperature is greater than the temperature difference between the residual water temperature and the second water temperature, using the heat preservation tank as the backflow tank; When the temperature difference between the residual water temperature and the first water temperature is less than or equal to the temperature difference between the residual water temperature and the second water temperature, using the normal temperature tank as the backflow tank.

[0070] In some embodiments, the control method further comprises: calculating a temperature difference between the target outlet water temperature and the water temperature in the water supply tank; When the temperature difference between the target outlet water temperature and the water temperature in the water supply tank is less than a preset value, using the water supply tank as the backflow tank; otherwise, using a non-water supply tank as the backflow tank.

[0071] In some embodiments, the control method further comprises: comparing the target outlet water temperature, the residual water temperature, and the water temperature in the water supply tank; When the target outlet water temperature is greater than the residual water temperature, and the residual water temperature is greater than the water temperature in the water supply tank, using the water supply tank as the backflow tank; otherwise, using a non-water supply tank as the backflow tank.

[0072] In some embodiments, the control method further comprises: receiving a backflow end signal, and controlling the switching valve to be conductive with the water supply tank when the backflow tank and the water supply tank are not the same tank; The backflow end signal is used to indicate that the pipeline residual water completes backflow.

[0073] In some embodiments, the control method further comprises: After receiving the backflow end signal, delaying the control of the switching valve to be conductive with the water supply tank.

[0074] In some embodiments, the control method further comprises: adjusting the heating power of the instant heater according to the target outlet water temperature and at least one of the first water temperature or the second water temperature.

[0075] The control device of the water treatment equipment provided in the present application is described below. The control device of the water treatment equipment described below can be referred to in correspondence with the control method of the water treatment equipment described above.

[0076] In an embodiment, as shown in Figure 4 Fig. 1, a control device of a water treatment device is provided, comprising: a control module 210, configured to determine a water supply tank to supply water according to a target water outlet temperature, a first water temperature and a second water temperature, and control the reversing valve and the switching valve to be in conduction, and control the switching valve to be in conduction with a backflow tank in the normal temperature water tank and the heat preservation water tank, in response to a trigger signal prompting water outlet. wherein the first water temperature is the water temperature of the normal temperature water tank, and the second water temperature is the water temperature of the heat preservation water tank.

[0077] In an embodiment, the control module 210 is further configured to: when the water supply tank is the normal temperature water tank, take the heat preservation water tank as the backflow tank; and when the water supply tank is the heat preservation water tank, take the normal temperature water tank as the backflow tank.

[0078] In an embodiment, the control module 210 is further configured to: calculate a temperature difference between a residual water temperature of residual water in a pipeline of the water treatment device and the first water temperature and the second water temperature; when the temperature difference between the residual water temperature and the first water temperature is greater than the temperature difference between the residual water temperature and the second water temperature, take the heat preservation water tank as the backflow tank; when the temperature difference between the residual water temperature and the first water temperature is less than or equal to the temperature difference between the residual water temperature and the second water temperature, take the normal temperature water tank as the backflow tank.

[0079] In an embodiment, the control module 210 is further configured to: calculate a temperature difference between the target water outlet temperature and a water temperature in the water supply tank; when the temperature difference between the target water outlet temperature and the water temperature in the water supply tank is less than a preset value, take the water supply tank as the backflow tank; otherwise, take a non-water supply tank as the backflow tank.

[0080] In an embodiment, the control module 210 is further configured to: compare the target water outlet temperature, the residual water temperature and the water temperature of the water supply tank; when the target water outlet temperature is greater than the residual water temperature, and the residual water temperature is greater than the water temperature of the water supply tank, take the water supply tank as the backflow tank; otherwise, take a non-water supply tank as the backflow tank.

[0081] In an embodiment, the control module 210 is further configured to: Upon receiving a return flow end signal, when the return water tank and the supply water tank are not the same tank, control the switching valve to connect with the supply water tank; The recirculation end signal is used to indicate that the residual water in the pipeline has completed recirculation.

[0082] In one embodiment, the control module 210 is further configured to: After receiving the return flow end signal, the switching valve is connected to the water supply tank after a delay.

[0083] In one embodiment, the control module 210 is further configured to: The heating power of the instantaneous heating element is adjusted according to the target outlet water temperature and at least one of the first water temperature or the second water temperature.

[0084] Figure 5 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 5 As shown, the electronic device may include: a processor 810, a communication interface 820, a memory 830, and a communication bus 840, wherein the processor 810, the communication interface 820, and the memory 830 communicate with each other via the communication bus 840. The processor 810 can call a computer program stored in the memory 830 to execute control methods for the water treatment device, such as including: In response to the trigger signal indicating water output, the system determines the water supply tank output from the ambient temperature water tank and the insulated water tank based on the target water output temperature, the first water temperature, and the second water temperature, and controls the reversing valve and the switching valve to be connected, as well as controls the switching valve to be connected to the return water tank in the ambient temperature water tank and the insulated water tank. The first water temperature is the water temperature in the ambient temperature water tank, and the second water temperature is the water temperature in the insulated water tank.

[0085] Furthermore, the logical instructions in the aforementioned memory 830 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0086] In another aspect, the embodiments of the present application also provide a storage medium, which comprises a computer program, the computer program being stored in a non-transitory computer readable storage medium, and the computer program being executable by a processor to cause the computer to execute the water treatment device provided by the above-mentioned embodiments, for example comprising: In response to the trigger signal prompting the water, determining the water supply tank to supply water according to the target water temperature, the first water temperature and the second water temperature, and controlling the reversing valve and the switching valve to be conductive, and controlling the switching valve and the backflow tank in the normal temperature water tank and the heat preservation water tank to be conductive. Wherein, the first water temperature is the water temperature of the normal temperature water tank, and the second water temperature is the water temperature of the heat preservation water tank.

[0087] The device embodiments described above are only schematic, wherein the units shown as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e., can be located in one place, or can be distributed on multiple network units. Part or all of the modules can be selected to achieve the purpose of the embodiments according to actual needs. Those skilled in the art can understand and implement without creative labor.

[0088] From the above description of the embodiments, those skilled in the art can clearly understand that the embodiments can be realized by means of software plus necessary universal hardware platforms, and of course can also be realized by hardware. Based on such understanding, the above technical solutions can be embodied in the form of software products, which can be stored in a computer readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and include a number of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute the methods described in each embodiment or some parts of the embodiments.

[0089] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A water treatment apparatus, characterized by, The utility model relates to a water supply device, including: Normal temperature water tank, heat preservation water tank, switch valve, reversing valve and controller; The first water outlet pipeline is arranged between the water outlet of the normal temperature water tank and the water inlet of the reversing valve, and the second water outlet pipeline is communicated between the water outlet of the heat preservation water tank and the first water outlet pipeline; The first water outlet of the reversing valve is communicated with the water inlet of the switch valve, and the second water outlet of the reversing valve is used for supplying water to the outside; The first water outlet of the switch valve is communicated with the water inlet of the normal temperature water tank, and the second water outlet of the switch valve is communicated with the water inlet of the heat preservation water tank; The controller is used for determining the water supply water tank according to the target water outlet temperature, the first water temperature and the second water temperature, controlling the switch valve and the switch valve to be conducted, and controlling the switch valve and the normal temperature water tank and the heat preservation water tank to be conducted when the trigger signal of prompting water outlet is responded; Wherein, the first water temperature is the water temperature of the normal temperature water tank, and the second water temperature is the water temperature of the heat preservation water tank.

2. The water treatment apparatus of claim 1, wherein The controller is also used for: When the water supply water tank is the normal temperature water tank, the heat preservation water tank is used as the backflow water tank;When the water supply water tank is the heat preservation water tank, the normal temperature water tank is used as the backflow water tank.

3. The water treatment device of claim 1, wherein, The controller is also used for: Calculate the temperature difference between the residual water temperature of the pipeline residual water in the water treatment equipment and the first water temperature, the second water temperature; When the temperature difference between the residual water temperature and the first water temperature is greater than the temperature difference between the residual water temperature and the second water temperature, the heat preservation water tank is used as the backflow water tank; When the temperature difference between the residual water temperature and the first water temperature is less than or equal to the temperature difference between the residual water temperature and the second water temperature, the normal temperature water tank is used as the backflow water tank.

4. The water treatment device of claim 1, wherein, The controller is also used for: Calculate the temperature difference between the target water outlet temperature and the water temperature in the water supply water tank; When the temperature difference between the target water outlet temperature and the water temperature in the water supply water tank is less than the preset value, the water supply water tank is used as the backflow water tank;Otherwise, the non-water supply water tank is used as the backflow water tank.

5. The water treatment device of claim 1, wherein, The controller is also used for: Compare the size of the target water outlet temperature, the residual water temperature and the water temperature of the water supply water tank; When the target water outlet temperature is greater than the residual water temperature, and the residual water temperature is greater than the water temperature of the water supply water tank, the water supply water tank is used as the backflow water tank;Otherwise, the non-water supply water tank is used as the backflow water tank.

6. The water treatment apparatus according to any one of claims 1 to 5, characterized in that, characterized in that, The controller is also used for: Receive the backflow end signal, and control the switch valve and the water supply water tank to be conducted when the backflow water tank and the water supply water tank are not the same water tank; Wherein, the backflow end signal is used for indicating that the pipeline residual water is completed backflow.

7. The water treatment apparatus according to claim 6, characterized in that, characterized in that, The controller is also used for: After receiving the backflow end signal, the switch valve and the water supply water tank are controlled in time.

8. The water treatment device of claim 1, wherein, It also includes at least one instant heating element; The instant heating element is arranged upstream of the water inlet of the reversing valve and downstream of the intersection point of the first water outlet pipeline and the second water outlet pipeline; The controller is also used for adjusting the heating power of the instant heating element according to the target water outlet temperature and at least one of the first water temperature or the second water temperature.

9. A control method of a water treatment apparatus, characterized by, The water treatment device according to any one of claims 1-7, comprising: in response to a trigger signal prompting water output, determining a water supply tank to output water according to a target water output temperature, a first water temperature and a second water temperature, and controlling the reversing valve to be in conduction with the switching valve, and controlling the switching valve to be in conduction with a backflow tank in the normal temperature water tank and the heat preservation water tank; wherein the first water temperature is the water temperature of the normal temperature water tank, and the second water temperature is the water temperature of the heat preservation water tank.

10. A control device of a water treatment apparatus, characterized by, The water treatment device according to any one of claims 1-8, comprising: a control module, configured to, in response to a trigger signal prompting water output, determine a water supply tank to output water according to a target water output temperature, a first water temperature and a second water temperature, and control the reversing valve to be in conduction with the switching valve, and control the switching valve to be in conduction with a backflow tank in the normal temperature water tank and the heat preservation water tank; wherein the first water temperature is the water temperature of the normal temperature water tank, and the second water temperature is the water temperature of the heat preservation water tank.

11. An electronic device comprising a processor and a memory having a computer program stored therein, characterized in that, The processor executes the computer program to implement the control method of the water treatment device according to claim 9.

Images